Climatic warming destabilizes forest ant communities.
Climatic warming destabilizes forest ant communities.
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DOI：
10.1126/sciadv.1600842
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发表时间：
2016-10
期刊：
影响因子：
13.6
通讯作者：
Gotelli NJ
中科院分区：
文献类型：
--
作者：
Diamond SE;Nichols LM;Pelini SL;Penick CA;Barber GW;Cahan SH;Dunn RR;Ellison AM;Sanders NJ;Gotelli NJ
一个基于实地的气候变暖实验揭示了由于物种相互作用的改变而导致的动态群落稳定性的丧失。生态社区将如何应对气候变暖？温度的直接影响和物种相互作用的间接级联效应已经改变了当地社区的结构，但社区变化的动态仍然知之甚少。我们探讨了气候变暖对森林蚂蚁群落的动态和营业额的累积影响，这些蚂蚁群落在北美东部的两个地点进行了为期5年的气候操纵实验。在社区层面上，变暖不断增加占用的巢和减少灭绝和巢遗弃。这种一致性在很大程度上是由每个站点的嗜热物种子集的强烈反应驱动的。由于嗜热物种的殖民地坚持在巢较长的时间在温暖的温度下，营业额减少，物种之间的相互作用可能会改变。我们发现，动态（李雅普诺夫）社区的稳定性下降，变暖的网站内和网站之间。这些结果驳斥了简单的温度驱动的嗜热性外温动物的活动和运动增加的零期望。在变暖下的稳定性降低与以前的研究结果，表明物种的相互作用实验和自然变暖的弹性。面对更温暖、不可模拟的气候，未来的社区可能会变得越来越脆弱和不稳定。
A field-based climate warming experiment reveals a loss of dynamical community stability due to altered species interactions. How will ecological communities change in response to climate warming? Direct effects of temperature and indirect cascading effects of species interactions are already altering the structure of local communities, but the dynamics of community change are still poorly understood. We explore the cumulative effects of warming on the dynamics and turnover of forest ant communities that were warmed as part of a 5-year climate manipulation experiment at two sites in eastern North America. At the community level, warming consistently increased occupancy of nests and decreased extinction and nest abandonment. This consistency was largely driven by strong responses of a subset of thermophilic species at each site. As colonies of thermophilic species persisted in nests for longer periods of time under warmer temperatures, turnover was diminished, and species interactions were likely altered. We found that dynamical (Lyapunov) community stability decreased with warming both within and between sites. These results refute null expectations of simple temperature-driven increases in the activity and movement of thermophilic ectotherms. The reduction in stability under warming contrasts with the findings of previous studies that suggest resilience of species interactions to experimental and natural warming. In the face of warmer, no-analog climates, communities of the future may become increasingly fragile and unstable.
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影响因子：
3.7
作者：
King JR;Warren RJ;Bradford MA
通讯作者：
Bradford MA
影响因子：
56.9
作者：
Chen, I-Ching;Hill, Jane K.;Thomas, Chris D.
通讯作者：
Thomas, Chris D.
DOI：
10.1111/nyas.12286
发表时间：
2013-01-01
期刊：
CLIMATE CHANGE AND SPECIES INTERACTIONS: WAYS FORWARD
影响因子：
--
作者：
Angert, Amy L.;LaDeau, Shannon L.;Ostfeld, Richard S.
通讯作者：
Ostfeld, Richard S.
影响因子：
6.6
作者：
Pelini, Shannon L.;Bowles, Francis P.;Dunn, Robert R.
通讯作者：
Dunn, Robert R.
DOI：
10.1073/pnas.1220228110
发表时间：
2013-06-04
影响因子：
11.1
作者：
Blois, Jessica L.;Williams, John W.;Ferrier, Simon
通讯作者：
Ferrier, Simon